you guys that are getting gears
go to
www.gefracing.com they sell the gear sets for 139
for all getting gears good luck cause I see a few getting 3.73s
all i can say is 3.73s suck for the 99+ the reason 3.73 were so great for 5.0s is cause 1st they came with 2.73 or the autos 3.08
and the 5.0s made more power down low with a peak horepower around 4400 but the mod motor needs the extra gear,they peak at 5000 (not 5250) so you need to shift at around 55-5700(stock) . with a 3.73 gear it will put you way out of the power band when it comes to drag racing at the end of the track causing your times to not be what they should be